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Finding the Third Proportional to 39,359 and 84,939

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Solution

The third proportional to 39,359 and 84,939 is: 183,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,359 : 84,939 = 84,939 : x
  2. Step 2: Convert to fraction form
    39,359/84,939 = 84,939/x
  3. Step 3: Cross multiply
    39,359x = 84,939 × 84,939
  4. Step 4: Simplify right side
    39,359x = 7,214,633,721
  5. Step 5: Solve for x
    x = 7,214,633,721/39,359
  6. Step 6: Final answer
    x = 183,303.28

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.